ICSE Class 10 Chemistry 2013 Solved Paper
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The following questions relate to the extraction of aluminium by electrolysis :
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Question : 66 of 84
Marks:
+1,
-0
Explain why is it necessary to renew the anode periodically.
Solution:
The anode has got to be replaced periodically, as it gets oxidised by the oxygen evolved at the anode.
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